Migrate flame_forge2d to monorepo (#852)

* Migrate flame_forge2d to monorepo * Put in the temporary publish to none * Update docs * Add dart_code_metrics * Add analysis options * Fix analyze issues * Fix formatting * Add dart_code_metrics to flame_forge2d example
2025-11-03 12:28:03 +08:00 · 2021-06-21 22:02:32 +02:00
parent e2aee0cd63
commit cf19ec5e4e
40 changed files with 1766 additions and 7 deletions
--- a/packages/flame_forge2d/example/lib/blob_sample.dart
+++ b/packages/flame_forge2d/example/lib/blob_sample.dart
@ -0,0 +1,116 @@
+import 'dart:math' as math;
+import 'package:flame_forge2d/body_component.dart';
+import 'package:forge2d/forge2d.dart';
+import 'package:flame/extensions.dart';
+import 'package:flame/game.dart';
+import 'package:flame/gestures.dart';
+import 'package:flame_forge2d/forge2d_game.dart';
+
+import 'boundaries.dart';
+
+class Ground extends BodyComponent {
+  final Vector2 worldCenter;
+
+  Ground(this.worldCenter);
+
+  @override
+  Body createBody() {
+    final shape = PolygonShape();
+    shape.setAsBoxXY(20.0, 0.4);
+
+    final bodyDef = BodyDef();
+    bodyDef.position.setFrom(worldCenter);
+    final ground = world.createBody(bodyDef);
+    ground.createFixtureFromShape(shape);
+
+    shape.setAsBox(0.4, 20.0, Vector2(-10.0, 0.0), 0.0);
+    ground.createFixtureFromShape(shape);
+    shape.setAsBox(0.4, 20.0, Vector2(10.0, 0.0), 0.0);
+    ground.createFixtureFromShape(shape);
+    return ground;
+  }
+}
+
+class BlobPart extends BodyComponent {
+  final ConstantVolumeJointDef jointDef;
+  final int bodyNumber;
+  final Vector2 blobRadius;
+  final Vector2 blobCenter;
+
+  BlobPart(
+    this.bodyNumber,
+    this.jointDef,
+    this.blobRadius,
+    this.blobCenter,
+  );
+
+  @override
+  Body createBody() {
+    const nBodies = 20.0;
+    const bodyRadius = 0.5;
+    final angle = (bodyNumber / nBodies) * math.pi * 2;
+    final x = blobCenter.x + blobRadius.x * math.sin(angle);
+    final y = blobCenter.y + blobRadius.y * math.cos(angle);
+
+    final bodyDef = BodyDef()
+      ..fixedRotation = true
+      ..position.setValues(x, y)
+      ..type = BodyType.dynamic;
+    final body = world.createBody(bodyDef);
+
+    final shape = CircleShape()..radius = bodyRadius;
+    final fixtureDef = FixtureDef(shape)
+      ..density = 1.0
+      ..filter.groupIndex = -2;
+    body.createFixture(fixtureDef);
+    jointDef.addBody(body);
+    return body;
+  }
+}
+
+class FallingBox extends BodyComponent {
+  final Vector2 position;
+
+  FallingBox(this.position);
+
+  @override
+  Body createBody() {
+    final bodyDef = BodyDef()
+      ..type = BodyType.dynamic
+      ..position = position;
+    final shape = PolygonShape()..setAsBoxXY(2, 4);
+    final body = world.createBody(bodyDef);
+    body.createFixtureFromShape(shape, 1.0);
+    return body;
+  }
+}
+
+class BlobSample extends Forge2DGame with TapDetector {
+  BlobSample() : super(gravity: Vector2(0, -10.0));
+
+  @override
+  Future<void> onLoad() async {
+    await super.onLoad();
+    final worldCenter = screenToWorld(size * camera.zoom / 2);
+    final blobCenter = worldCenter + Vector2(0, 10);
+    final blobRadius = Vector2.all(6.0);
+    addAll(createBoundaries(this));
+    add(Ground(worldCenter));
+    final jointDef = ConstantVolumeJointDef()
+      ..frequencyHz = 20.0
+      ..dampingRatio = 1.0
+      ..collideConnected = false;
+
+    await Future.wait(List.generate(
+      20,
+      (i) => add(BlobPart(i, jointDef, blobRadius, blobCenter)),
+    ));
+    world.createJoint(jointDef);
+  }
+
+  @override
+  void onTapDown(TapDownInfo details) {
+    super.onTapDown(details);
+    add(FallingBox(details.eventPosition.game));
+  }
+}